SOLUTION: Solve. {{{3x-7x=0 }}} {{{x^2+4=4x }}} {{{ Thank YOU }}}

Question 152268: Solve.

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
# 1

Start with the given equation.

Combine like terms on the left side.

Divide both sides by to isolate .

Reduce.

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Answer:

So the answer is

# 2

Start with the given equation.

Subtract 4x from both sides.

Rearrange the terms.

Notice we have a quadratic equation in the form of where , , and

Let's use the quadratic formula to solve for x

Start with the quadratic formula

Plug in , , and

Negate to get .

Square to get .

Multiply to get

Subtract from to get

Multiply and to get .

Take the square root of to get .

or Break up the expression.

or Combine like terms.

or Simplify.

So the only answer is

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